I know a lot of people have talked about this product having the possibility of ruining your enamel and making your teeth more sensitive, but coming from someone who has both sensitive teeth and gums, this product gave me 0 problems and 100% satisfaction. It is definitely on the pricey side but one box, or at least 10 treatments will hold you solid for a long time. It's a great investment and made me all the more comfortable with smiling!

I ran into my eldest sister years ago smiling (she doesn't normally show her teeth) but as soon as she smiled at me I KNEW she had been to the dentist, but boy was I wrong! She had introduced me to crest 3d professional effects and since then I have been hooked!! I cannot believe that they actually work!! I drink a lot of coffee and was a smoker for years and I can use a strip a day for a couple of days and my teeth are pearly white!! Even just one strip makes a huge difference!

So I just started whitening my teeth not too long ago. I used the whole box of treatments and it really made a huge difference. If you use the all of the treatments each night and keep them on for the full thirty minutes you will see the change. 10/10 recommend.

Had years of stains and very bad stains with receding gums and parts of my teeth with stains that the dentist could now polish away b/c they were too sensitive These strips made those ugly gum line stains disappear and now my teeth are so white, you can't even tell my gums have receded. Worth every penny and my teeth aren't even sensitive after. sooo happy OMG perfect

Crest 3D whitestrips didn't cause tooth sensitivity like other at home treatments that I've tried in the past. Using the strips, toothpaste, and rinse, I saw a whiter smile after within days that hasn't faded. I'd recommend the 3D products to friends and family, and they're a great value.

These white strips are seriously amazing! I get so many compliments on my teeth since using these. Only drawback is, if I use these every day then I have a bit of tooth sensitivity. Feels like electric shocks in the roots of my teeth, not enjoyable BUT the results are worth it!

These work so so SO well. I can't say enough good things about these white strips. Sometimes my bottom teeth will develop a sensitivity to cold products after using these for a while, but then I just use sensodyne tooth paste and it fixes the problem right away.

Hace dos meses empezamos a usar estas tiras,mi esposo tenia los dientes muy amarillos y en 3 semanas sus dientes se aclararon mucho,él está muy feliz pues un blanqueamiento en el dentista es super caro,en cambio en mis dientes no he notado mucho cambio,quiza porque los mios no han estado amarillos,pero tampoco son super blancos,al menos sé que funcionan y no nos produjo ninguna sensibilidad ni dolor y lo malo es que no siempre pegan bien,algunas tiras parecen no tener mucha fuerza para pegarse a tus dientes y se resbalan

Love love love these! I have been using them for years, applying them two days in a row every few months. They really give the look of a very expensive clinical whitening. There is a little sensitivity the next day but nothing major and it goes away. 10/10 recommend!

These crest 3-D white looks professional effects white strips teeth whitening kit have literally changed my teeth. They are so much brighter now and I use them once every 2 months. I wouldn't recommend using them too often since they can make your teeth sensitive. Also make sure not to use them for more than they say to.